legal ground
Article 30 of the Administrative Punishment Law of the People's Republic of China
If a citizen, legal person or other organization violates the administrative order and should be given administrative punishment according to law, the administrative organ must ascertain the facts; If the illegal facts are unclear, no administrative punishment shall be given.
Article 31
Before making a decision on administrative punishment, the administrative organ shall inform the parties of the facts, reasons and basis for making the decision on administrative punishment, and inform the parties of their rights according to law.
Article 32
The parties have the right to make statements and defend themselves. The administrative organ must fully listen to the opinions of the parties and examine the facts, reasons and evidence put forward by the parties; If the facts, reasons or evidence put forward by the parties are established, the administrative organ shall adopt them. The administrative organ shall not aggravate the punishment because the parties plead.